Tag: vacuum tubes

via HACKADAY: Tube Amps are Still Tubular in 2018

Our friend [Pete] was reminiscing over the golden days with his old and broken antique Grundig Majestic console when he realized it deserved proper refurbishing. Now, any generic stereo record player might not be worth the time and effort to fix, but this was not any generic stereo record player. [Pete’s] inherited Grundig Majestic was his childhood […]

Retro radios are what he’s tuned in to (New York)

It’s a scene Terry Adelwerth has witnessed multiple times: A car pulls into a radio swap meet in upstate Rochester, and before the driver has a chance to shift into park, people surround the vehicle and are pulling on the door handles. “He’s rolling to a stop and they’re opening his doors and grabbing stuff,” […]

via HACKADAY: Retrotechtacular: The Transistor (1953 Film)

If we cast our minds back to the early years of the transistor, the year that is always quoted is 1947, during which a Bell Labs team developed the first practical germanium point-contact transistor. They would go on to be granted the Nobel Prize for their work in 1956, but the universal adoption of their […]

via HACKADAY: Measuring Capacitors at the Birth of Rock and Roll

The late 1950s [Bill Haley], [Elvis Presley], and [Little Richard] were building a new kind of music. Meanwhile, electronic hobbyists were building their own gear from Heathkit. A lot of that gear shows you how far we’ve come in less than a century. [Jeff Tranter’s] YouTube channel is a great way to look at a […]

via HACKADAY: Now is the Golden Age of Artisanal, Non-Traditional Tube Amps

Earlier in the month, [Elliot Williams] quipped that it had been far too long since we saw a VFD-based amplifier build. Well, that dry spell is over. This week, [kodera2t] started showing off his design for a VFD headphone amp. Here’s the thing, this isn’t using old surplus vacuum fluorescent displays. This is actually a […]

via HACKADAY: History Of The Diode

The history of the diode is a fun one as it’s rife with accidental discoveries, sometimes having to wait decades for a use for what was found. Two examples of that are our first two topics: thermionic emission and semiconductor diodes. So let’s dive in. VACUUM TUBES/THERMIONIC DIODES Our first accidental discovery was of thermionic […]

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